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        Package&nbsp;tools ::
        Module&nbsp;nt2csv
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<h1 class="epydoc">Source Code for <a href="tools.nt2csv-module.html">Module tools.nt2csv</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno">  1</tt>  <tt class="py-line"><tt class="py-docstring">"""</tt> </tt>
<a name="L2"></a><tt class="py-lineno">  2</tt>  <tt class="py-line"><tt class="py-docstring">A converter from RDF/NTriples format into BigQuery-compliant CSV format. </tt> </tt>
<a name="L3"></a><tt class="py-lineno">  3</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L4"></a><tt class="py-lineno">  4</tt>  <tt class="py-line"><tt class="py-docstring">This tool is part of the U{BigQuery for Linked Data &lt;http://code.google.com/p/bigquery-linkeddata/&gt;} effort.</tt> </tt>
<a name="L5"></a><tt class="py-lineno">  5</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L6"></a><tt class="py-lineno">  6</tt>  <tt class="py-line"><tt class="py-docstring">@author: Michael Hausenblas, http://sw-app.org/mic.xhtml#i</tt> </tt>
<a name="L7"></a><tt class="py-lineno">  7</tt>  <tt class="py-line"><tt class="py-docstring">@since: 2010-12-12</tt> </tt>
<a name="L8"></a><tt class="py-lineno">  8</tt>  <tt class="py-line"><tt class="py-docstring">@status: updated to quintuple scheme</tt> </tt>
<a name="L9"></a><tt class="py-lineno">  9</tt>  <tt class="py-line"><tt class="py-docstring">"""</tt> </tt>
<a name="L10"></a><tt class="py-lineno"> 10</tt>  <tt class="py-line"> </tt>
<a name="L11"></a><tt class="py-lineno"> 11</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">sys</tt><tt class="py-op">,</tt> <tt class="py-name">csv</tt><tt class="py-op">,</tt> <tt class="py-name">os</tt> </tt>
<a name="L12"></a><tt class="py-lineno"> 12</tt>  <tt class="py-line"> </tt>
<a name="L13"></a><tt class="py-lineno"> 13</tt>  <tt class="py-line"><tt class="py-string">"""</tt> </tt>
<a name="L14"></a><tt class="py-lineno"> 14</tt>  <tt class="py-line"><tt class="py-string">The NTriple/CSV converter class.</tt> </tt>
<a name="L15"></a><tt class="py-lineno"> 15</tt>  <tt class="py-line"><tt class="py-string">"""</tt> </tt>
<a name="NTriple2CSV"></a><div id="NTriple2CSV-def"><a name="L16"></a><tt class="py-lineno"> 16</tt> <a class="py-toggle" href="#" id="NTriple2CSV-toggle" onclick="return toggle('NTriple2CSV');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html">NTriple2CSV</a><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="NTriple2CSV-expanded"><a name="NTriple2CSV.__init__"></a><div id="NTriple2CSV.__init__-def"><a name="L17"></a><tt class="py-lineno"> 17</tt> <a class="py-toggle" href="#" id="NTriple2CSV.__init__-toggle" onclick="return toggle('NTriple2CSV.__init__');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">fname</tt><tt class="py-op">,</tt> <tt class="py-param">tgraph</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.__init__-expanded"><a name="L18"></a><tt class="py-lineno"> 18</tt>  <tt class="py-line">                <tt class="py-docstring">"""</tt> </tt>
<a name="L19"></a><tt class="py-lineno"> 19</tt>  <tt class="py-line"><tt class="py-docstring">                Initialises the converter. If a .nt file is given, the converter uses this as an input to create a .csv file. </tt> </tt>
<a name="L20"></a><tt class="py-lineno"> 20</tt>  <tt class="py-line"><tt class="py-docstring">                However, if a directory is specified, then all .nt files in this directory are converted to .csv files.</tt> </tt>
<a name="L21"></a><tt class="py-lineno"> 21</tt>  <tt class="py-line"><tt class="py-docstring">                </tt> </tt>
<a name="L22"></a><tt class="py-lineno"> 22</tt>  <tt class="py-line"><tt class="py-docstring">                @param fname: The input NTriples file (or directory with NTriples files).</tt> </tt>
<a name="L23"></a><tt class="py-lineno"> 23</tt>  <tt class="py-line"><tt class="py-docstring">                @param tgraph: The target graph URI.</tt> </tt>
<a name="L24"></a><tt class="py-lineno"> 24</tt>  <tt class="py-line"><tt class="py-docstring">                """</tt> </tt>
<a name="L25"></a><tt class="py-lineno"> 25</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">ifname</tt> <tt class="py-op">=</tt> <tt class="py-name">fname</tt> </tt>
<a name="L26"></a><tt class="py-lineno"> 26</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">tgraph</tt> <tt class="py-op">=</tt> <tt class="py-name">tgraph</tt> </tt>
<a name="L27"></a><tt class="py-lineno"> 27</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dodir</tt> <tt class="py-op">=</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">isdir</tt><tt class="py-op">(</tt><tt class="py-name">fname</tt><tt class="py-op">)</tt> <tt class="py-comment"># flag to remember if we're working on a directory or single file</tt> </tt>
</div><a name="L28"></a><tt class="py-lineno"> 28</tt>  <tt class="py-line"> </tt>
<a name="NTriple2CSV.create_outfilename"></a><div id="NTriple2CSV.create_outfilename-def"><a name="L29"></a><tt class="py-lineno"> 29</tt> <a class="py-toggle" href="#" id="NTriple2CSV.create_outfilename-toggle" onclick="return toggle('NTriple2CSV.create_outfilename');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#create_outfilename">create_outfilename</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">infilename</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.create_outfilename-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.create_outfilename-expanded"><a name="L30"></a><tt class="py-lineno"> 30</tt>  <tt class="py-line">                <tt class="py-op">(</tt><tt class="py-name">workpath</tt><tt class="py-op">,</tt> <tt class="py-name">outfilename</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">split</tt><tt class="py-op">(</tt><tt class="py-name">infilename</tt><tt class="py-op">)</tt> </tt>
<a name="L31"></a><tt class="py-lineno"> 31</tt>  <tt class="py-line">                <tt class="py-op">(</tt><tt class="py-name">filename</tt><tt class="py-op">,</tt> <tt class="py-name">ext</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">splitext</tt><tt class="py-op">(</tt><tt class="py-name">outfilename</tt><tt class="py-op">)</tt>  </tt>
<a name="L32"></a><tt class="py-lineno"> 32</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">workpath</tt><tt class="py-op">,</tt> <tt class="py-name">filename</tt> <tt class="py-op">+</tt> <tt class="py-string">'.csv'</tt><tt class="py-op">)</tt> </tt>
</div><a name="L33"></a><tt class="py-lineno"> 33</tt>  <tt class="py-line">                 </tt>
<a name="NTriple2CSV.strip_anglebr"></a><div id="NTriple2CSV.strip_anglebr-def"><a name="L34"></a><tt class="py-lineno"> 34</tt> <a class="py-toggle" href="#" id="NTriple2CSV.strip_anglebr-toggle" onclick="return toggle('NTriple2CSV.strip_anglebr');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#strip_anglebr">strip_anglebr</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.strip_anglebr-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.strip_anglebr-expanded"><a name="L35"></a><tt class="py-lineno"> 35</tt>  <tt class="py-line">                <tt class="py-docstring">"""</tt> </tt>
<a name="L36"></a><tt class="py-lineno"> 36</tt>  <tt class="py-line"><tt class="py-docstring">                Strips angle barckets from string, that is &lt;...&gt; into ...</tt> </tt>
<a name="L37"></a><tt class="py-lineno"> 37</tt>  <tt class="py-line"><tt class="py-docstring">                @return: the string with '&lt;'...'&gt;' removed</tt> </tt>
<a name="L38"></a><tt class="py-lineno"> 38</tt>  <tt class="py-line"><tt class="py-docstring">                """</tt> </tt>
<a name="L39"></a><tt class="py-lineno"> 39</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">startswith</tt><tt class="py-op">(</tt><tt class="py-string">'&lt;'</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L40"></a><tt class="py-lineno"> 40</tt>  <tt class="py-line">                        <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">strip</tt><tt class="py-op">(</tt><tt class="py-string">'&lt;'</tt><tt class="py-op">)</tt> </tt>
<a name="L41"></a><tt class="py-lineno"> 41</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">endswith</tt><tt class="py-op">(</tt><tt class="py-string">'&gt;'</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L42"></a><tt class="py-lineno"> 42</tt>  <tt class="py-line">                        <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">strip</tt><tt class="py-op">(</tt><tt class="py-string">'&gt;'</tt><tt class="py-op">)</tt>  </tt>
<a name="L43"></a><tt class="py-lineno"> 43</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">text</tt> </tt>
</div><a name="L44"></a><tt class="py-lineno"> 44</tt>  <tt class="py-line"> </tt>
<a name="NTriple2CSV.split_object"></a><div id="NTriple2CSV.split_object-def"><a name="L45"></a><tt class="py-lineno"> 45</tt> <a class="py-toggle" href="#" id="NTriple2CSV.split_object-toggle" onclick="return toggle('NTriple2CSV.split_object');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#split_object">split_object</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.split_object-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.split_object-expanded"><a name="L46"></a><tt class="py-lineno"> 46</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">find</tt><tt class="py-op">(</tt><tt class="py-string">'^^'</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;=</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L47"></a><tt class="py-lineno"> 47</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-0" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.strip_datatype()=tools.nt2csv.NTriple2CSV-class.html#strip_datatype"><a title="tools.nt2csv.NTriple2CSV.strip_datatype" class="py-name" href="#" onclick="return doclink('link-0', 'strip_datatype', 'link-0');">strip_datatype</a></tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-1" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.extract_datatype()=tools.nt2csv.NTriple2CSV-class.html#extract_datatype"><a title="tools.nt2csv.NTriple2CSV.extract_datatype" class="py-name" href="#" onclick="return doclink('link-1', 'extract_datatype', 'link-1');">extract_datatype</a></tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L48"></a><tt class="py-lineno"> 48</tt>  <tt class="py-line">                <tt class="py-keyword">elif</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">find</tt><tt class="py-op">(</tt><tt class="py-string">'@'</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;=</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L49"></a><tt class="py-lineno"> 49</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-2" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.strip_langtag()=tools.nt2csv.NTriple2CSV-class.html#strip_langtag"><a title="tools.nt2csv.NTriple2CSV.strip_langtag" class="py-name" href="#" onclick="return doclink('link-2', 'strip_langtag', 'link-2');">strip_langtag</a></tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-3" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.extract_langtag()=tools.nt2csv.NTriple2CSV-class.html#extract_langtag"><a title="tools.nt2csv.NTriple2CSV.extract_langtag" class="py-name" href="#" onclick="return doclink('link-3', 'extract_langtag', 'link-3');">extract_langtag</a></tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L50"></a><tt class="py-lineno"> 50</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L51"></a><tt class="py-lineno"> 51</tt>  <tt class="py-line">                        <tt class="py-keyword">return</tt> <tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">,</tt> <tt class="py-string">""</tt><tt class="py-op">)</tt> </tt>
</div><a name="L52"></a><tt class="py-lineno"> 52</tt>  <tt class="py-line">                         </tt>
<a name="NTriple2CSV.strip_datatype"></a><div id="NTriple2CSV.strip_datatype-def"><a name="L53"></a><tt class="py-lineno"> 53</tt> <a class="py-toggle" href="#" id="NTriple2CSV.strip_datatype-toggle" onclick="return toggle('NTriple2CSV.strip_datatype');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#strip_datatype">strip_datatype</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.strip_datatype-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.strip_datatype-expanded"><a name="L54"></a><tt class="py-lineno"> 54</tt>  <tt class="py-line">                <tt class="py-docstring">"""</tt> </tt>
<a name="L55"></a><tt class="py-lineno"> 55</tt>  <tt class="py-line"><tt class="py-docstring">                Removes NTriple datatype, that is, it turns '...'^^&lt;http://www.w3.org/2001/XMLSchema#string&gt; into '...'</tt> </tt>
<a name="L56"></a><tt class="py-lineno"> 56</tt>  <tt class="py-line"><tt class="py-docstring">                @return: the string with '^^&lt;...&gt;' removed</tt> </tt>
<a name="L57"></a><tt class="py-lineno"> 57</tt>  <tt class="py-line"><tt class="py-docstring">                """</tt> </tt>
<a name="L58"></a><tt class="py-lineno"> 58</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">split</tt><tt class="py-op">(</tt><tt class="py-string">'^^'</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
</div><a name="L59"></a><tt class="py-lineno"> 59</tt>  <tt class="py-line"> </tt>
<a name="NTriple2CSV.strip_langtag"></a><div id="NTriple2CSV.strip_langtag-def"><a name="L60"></a><tt class="py-lineno"> 60</tt> <a class="py-toggle" href="#" id="NTriple2CSV.strip_langtag-toggle" onclick="return toggle('NTriple2CSV.strip_langtag');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#strip_langtag">strip_langtag</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.strip_langtag-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.strip_langtag-expanded"><a name="L61"></a><tt class="py-lineno"> 61</tt>  <tt class="py-line">                <tt class="py-docstring">"""</tt> </tt>
<a name="L62"></a><tt class="py-lineno"> 62</tt>  <tt class="py-line"><tt class="py-docstring">                Removes NTriple language tag, that is, it turns '...'@de  into '...'</tt> </tt>
<a name="L63"></a><tt class="py-lineno"> 63</tt>  <tt class="py-line"><tt class="py-docstring">                @return: the string with '@..' removed</tt> </tt>
<a name="L64"></a><tt class="py-lineno"> 64</tt>  <tt class="py-line"><tt class="py-docstring">                """</tt> </tt>
<a name="L65"></a><tt class="py-lineno"> 65</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">text</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">rfind</tt><tt class="py-op">(</tt><tt class="py-string">'@'</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
</div><a name="L66"></a><tt class="py-lineno"> 66</tt>  <tt class="py-line"> </tt>
<a name="NTriple2CSV.extract_datatype"></a><div id="NTriple2CSV.extract_datatype-def"><a name="L67"></a><tt class="py-lineno"> 67</tt> <a class="py-toggle" href="#" id="NTriple2CSV.extract_datatype-toggle" onclick="return toggle('NTriple2CSV.extract_datatype');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#extract_datatype">extract_datatype</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.extract_datatype-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.extract_datatype-expanded"><a name="L68"></a><tt class="py-lineno"> 68</tt>  <tt class="py-line">                <tt class="py-docstring">"""</tt> </tt>
<a name="L69"></a><tt class="py-lineno"> 69</tt>  <tt class="py-line"><tt class="py-docstring">                Extracts the NTriple datatype, that is, it turns '...'^^&lt;http://www.w3.org/2001/XMLSchema#string&gt; into 'http://www.w3.org/2001/XMLSchema#string'</tt> </tt>
<a name="L70"></a><tt class="py-lineno"> 70</tt>  <tt class="py-line"><tt class="py-docstring">                @return: the NTriple datatype as a string</tt> </tt>
<a name="L71"></a><tt class="py-lineno"> 71</tt>  <tt class="py-line"><tt class="py-docstring">                """</tt> </tt>
<a name="L72"></a><tt class="py-lineno"> 72</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-4" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.strip_anglebr()=tools.nt2csv.NTriple2CSV-class.html#strip_anglebr"><a title="tools.nt2csv.NTriple2CSV.strip_anglebr" class="py-name" href="#" onclick="return doclink('link-4', 'strip_anglebr', 'link-4');">strip_anglebr</a></tt><tt class="py-op">(</tt><tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">split</tt><tt class="py-op">(</tt><tt class="py-string">'^^'</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
</div><a name="L73"></a><tt class="py-lineno"> 73</tt>  <tt class="py-line"> </tt>
<a name="NTriple2CSV.extract_langtag"></a><div id="NTriple2CSV.extract_langtag-def"><a name="L74"></a><tt class="py-lineno"> 74</tt> <a class="py-toggle" href="#" id="NTriple2CSV.extract_langtag-toggle" onclick="return toggle('NTriple2CSV.extract_langtag');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#extract_langtag">extract_langtag</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">text</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.extract_langtag-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.extract_langtag-expanded"><a name="L75"></a><tt class="py-lineno"> 75</tt>  <tt class="py-line">                <tt class="py-docstring">"""</tt> </tt>
<a name="L76"></a><tt class="py-lineno"> 76</tt>  <tt class="py-line"><tt class="py-docstring">                Extracts the NTriple language tag, that is, it turns '...'@de into 'de'</tt> </tt>
<a name="L77"></a><tt class="py-lineno"> 77</tt>  <tt class="py-line"><tt class="py-docstring">                @return: the NTriple language tag as a string</tt> </tt>
<a name="L78"></a><tt class="py-lineno"> 78</tt>  <tt class="py-line"><tt class="py-docstring">                """</tt> </tt>
<a name="L79"></a><tt class="py-lineno"> 79</tt>  <tt class="py-line">                <tt class="py-name">text</tt> <tt class="py-op">=</tt> <tt class="py-name">text</tt><tt class="py-op">[</tt><tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">rfind</tt><tt class="py-op">(</tt><tt class="py-string">'@'</tt><tt class="py-op">)</tt><tt class="py-op">:</tt><tt class="py-op">]</tt> </tt>
<a name="L80"></a><tt class="py-lineno"> 80</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">text</tt><tt class="py-op">.</tt><tt class="py-name">split</tt><tt class="py-op">(</tt><tt class="py-string">'@'</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> </tt>
</div><a name="L81"></a><tt class="py-lineno"> 81</tt>  <tt class="py-line"> </tt>
<a name="NTriple2CSV.convertfile"></a><div id="NTriple2CSV.convertfile-def"><a name="L82"></a><tt class="py-lineno"> 82</tt> <a class="py-toggle" href="#" id="NTriple2CSV.convertfile-toggle" onclick="return toggle('NTriple2CSV.convertfile');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#convertfile">convertfile</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">ifile</tt><tt class="py-op">,</tt> <tt class="py-param">tg</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.convertfile-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.convertfile-expanded"><a name="L83"></a><tt class="py-lineno"> 83</tt>  <tt class="py-line">                <tt class="py-docstring">"""</tt> </tt>
<a name="L84"></a><tt class="py-lineno"> 84</tt>  <tt class="py-line"><tt class="py-docstring">                Takes an RDF file in U{NTriples format &lt;http://www.w3.org/TR/rdf-testcases/#ntriples&gt;} and turns it into a U{BigQuery-compliant &lt;http://code.google.com/apis/bigquery/docs/uploading.html#createtabledata&gt;}  CSV file.</tt> </tt>
<a name="L85"></a><tt class="py-lineno"> 85</tt>  <tt class="py-line"><tt class="py-docstring">                """</tt> </tt>
<a name="L86"></a><tt class="py-lineno"> 86</tt>  <tt class="py-line">                <tt class="py-name">ofile</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-5" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.create_outfilename()=tools.nt2csv.NTriple2CSV-class.html#create_outfilename"><a title="tools.nt2csv.NTriple2CSV.create_outfilename" class="py-name" href="#" onclick="return doclink('link-5', 'create_outfilename', 'link-5');">create_outfilename</a></tt><tt class="py-op">(</tt><tt class="py-name">ifile</tt><tt class="py-op">)</tt> </tt>
<a name="L87"></a><tt class="py-lineno"> 87</tt>  <tt class="py-line">                 </tt>
<a name="L88"></a><tt class="py-lineno"> 88</tt>  <tt class="py-line">                <tt class="py-comment">#: prep output so that the CSV is compliant with </tt> </tt>
<a name="L89"></a><tt class="py-lineno"> 89</tt>  <tt class="py-line"><tt class="py-comment"></tt>                <tt class="py-name">bqcsv</tt> <tt class="py-op">=</tt> <tt class="py-name">csv</tt><tt class="py-op">.</tt><tt class="py-name">writer</tt><tt class="py-op">(</tt><tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-name">ofile</tt><tt class="py-op">,</tt> <tt class="py-string">'wb'</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">delimiter</tt><tt class="py-op">=</tt><tt class="py-string">','</tt><tt class="py-op">,</tt> <tt class="py-name">quoting</tt><tt class="py-op">=</tt><tt class="py-name">csv</tt><tt class="py-op">.</tt><tt class="py-name">QUOTE_ALL</tt><tt class="py-op">)</tt> </tt>
<a name="L90"></a><tt class="py-lineno"> 90</tt>  <tt class="py-line"> </tt>
<a name="L91"></a><tt class="py-lineno"> 91</tt>  <tt class="py-line">                <tt class="py-comment">#: read RDF NTriples content line by line ...</tt> </tt>
<a name="L92"></a><tt class="py-lineno"> 92</tt>  <tt class="py-line"><tt class="py-comment"></tt>                <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L93"></a><tt class="py-lineno"> 93</tt>  <tt class="py-line">                        <tt class="py-name">rdftriples</tt> <tt class="py-op">=</tt> <tt class="py-name">csv</tt><tt class="py-op">.</tt><tt class="py-name">reader</tt><tt class="py-op">(</tt><tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-name">ifile</tt><tt class="py-op">,</tt> <tt class="py-string">'rb'</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">delimiter</tt><tt class="py-op">=</tt><tt class="py-string">' '</tt><tt class="py-op">,</tt> <tt class="py-name">quoting</tt><tt class="py-op">=</tt><tt class="py-name">csv</tt><tt class="py-op">.</tt><tt class="py-name">QUOTE_ALL</tt><tt class="py-op">)</tt> </tt>
<a name="L94"></a><tt class="py-lineno"> 94</tt>  <tt class="py-line">                        <tt class="py-keyword">for</tt> <tt class="py-name">triple</tt> <tt class="py-keyword">in</tt> <tt class="py-name">rdftriples</tt><tt class="py-op">:</tt> </tt>
<a name="L95"></a><tt class="py-lineno"> 95</tt>  <tt class="py-line">                                <tt class="py-comment">#: ... and create CSV in BigQuery CSV format</tt> </tt>
<a name="L96"></a><tt class="py-lineno"> 96</tt>  <tt class="py-line"><tt class="py-comment"></tt>                                <tt class="py-name">s</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-6" class="py-name"><a title="tools.nt2csv.NTriple2CSV.strip_anglebr" class="py-name" href="#" onclick="return doclink('link-6', 'strip_anglebr', 'link-4');">strip_anglebr</a></tt><tt class="py-op">(</tt><tt class="py-name">triple</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L97"></a><tt class="py-lineno"> 97</tt>  <tt class="py-line">                                <tt class="py-name">p</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-7" class="py-name"><a title="tools.nt2csv.NTriple2CSV.strip_anglebr" class="py-name" href="#" onclick="return doclink('link-7', 'strip_anglebr', 'link-4');">strip_anglebr</a></tt><tt class="py-op">(</tt><tt class="py-name">triple</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L98"></a><tt class="py-lineno"> 98</tt>  <tt class="py-line">                                <tt class="py-comment">#print triple[2]</tt> </tt>
<a name="L99"></a><tt class="py-lineno"> 99</tt>  <tt class="py-line"><tt class="py-comment"></tt>                                <tt class="py-op">(</tt><tt class="py-name">o</tt><tt class="py-op">,</tt> <tt class="py-name">o_type</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-8" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.split_object()=tools.nt2csv.NTriple2CSV-class.html#split_object"><a title="tools.nt2csv.NTriple2CSV.split_object" class="py-name" href="#" onclick="return doclink('link-8', 'split_object', 'link-8');">split_object</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-9" class="py-name"><a title="tools.nt2csv.NTriple2CSV.strip_anglebr" class="py-name" href="#" onclick="return doclink('link-9', 'strip_anglebr', 'link-4');">strip_anglebr</a></tt><tt class="py-op">(</tt><tt class="py-name">triple</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L100"></a><tt class="py-lineno">100</tt>  <tt class="py-line">                                <tt class="py-name">bqcsv</tt><tt class="py-op">.</tt><tt class="py-name">writerow</tt><tt class="py-op">(</tt><tt class="py-op">[</tt><tt class="py-name">tg</tt><tt class="py-op">,</tt> <tt class="py-name">s</tt><tt class="py-op">,</tt> <tt class="py-name">p</tt><tt class="py-op">,</tt> <tt class="py-name">o</tt><tt class="py-op">,</tt> <tt class="py-name">o_type</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L101"></a><tt class="py-lineno">101</tt>  <tt class="py-line">                <tt class="py-keyword">except</tt> <tt class="py-name">csv</tt><tt class="py-op">.</tt><tt class="py-name">Error</tt><tt class="py-op">,</tt> <tt class="py-name">e</tt><tt class="py-op">:</tt> </tt>
<a name="L102"></a><tt class="py-lineno">102</tt>  <tt class="py-line">                    <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">exit</tt><tt class="py-op">(</tt><tt class="py-string">'file %s, line %d: %s'</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">ofile</tt><tt class="py-op">,</tt> <tt class="py-name">rdftriples</tt><tt class="py-op">.</tt><tt class="py-name">line_num</tt><tt class="py-op">,</tt> <tt class="py-name">e</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L103"></a><tt class="py-lineno">103</tt>  <tt class="py-line"> </tt>
<a name="L104"></a><tt class="py-lineno">104</tt>  <tt class="py-line">                <tt class="py-keyword">print</tt> <tt class="py-string">'Done converting '</tt> <tt class="py-op">+</tt> <tt class="py-name">ifile</tt> <tt class="py-op">+</tt> <tt class="py-string">' to '</tt> <tt class="py-op">+</tt> <tt class="py-name">ofile</tt> </tt>
</div><a name="L105"></a><tt class="py-lineno">105</tt>  <tt class="py-line"> </tt>
<a name="NTriple2CSV.convert"></a><div id="NTriple2CSV.convert-def"><a name="L106"></a><tt class="py-lineno">106</tt> <a class="py-toggle" href="#" id="NTriple2CSV.convert-toggle" onclick="return toggle('NTriple2CSV.convert');">-</a><tt class="py-line">        <tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv.NTriple2CSV-class.html#convert">convert</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="NTriple2CSV.convert-collapsed" style="display:none;" pad="+++" indent="++++++++++++"></div><div id="NTriple2CSV.convert-expanded"><a name="L107"></a><tt class="py-lineno">107</tt>  <tt class="py-line">                <tt class="py-docstring">"""</tt> </tt>
<a name="L108"></a><tt class="py-lineno">108</tt>  <tt class="py-line"><tt class="py-docstring">                Depending on the initialisation, converts a single NTriple file or an entire directory with NTriple files to CSV.</tt> </tt>
<a name="L109"></a><tt class="py-lineno">109</tt>  <tt class="py-line"><tt class="py-docstring">                """</tt> </tt>
<a name="L110"></a><tt class="py-lineno">110</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">dodir</tt> <tt class="py-op">==</tt> <tt class="py-name">True</tt><tt class="py-op">:</tt> <tt class="py-comment"># process *.nt in directory</tt> </tt>
<a name="L111"></a><tt class="py-lineno">111</tt>  <tt class="py-line">                        <tt class="py-name">input_files</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">f</tt> <tt class="py-keyword">for</tt> <tt class="py-name">f</tt> <tt class="py-keyword">in</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">listdir</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">ifname</tt><tt class="py-op">)</tt> <tt class="py-keyword">if</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">isfile</tt><tt class="py-op">(</tt><tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">ifname</tt><tt class="py-op">,</tt> <tt class="py-name">f</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-name">f</tt><tt class="py-op">.</tt><tt class="py-name">endswith</tt><tt class="py-op">(</tt><tt class="py-string">'.nt'</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L112"></a><tt class="py-lineno">112</tt>  <tt class="py-line">                        <tt class="py-keyword">for</tt> <tt class="py-name">f</tt> <tt class="py-keyword">in</tt> <tt class="py-name">input_files</tt><tt class="py-op">:</tt> </tt>
<a name="L113"></a><tt class="py-lineno">113</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-10" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.convertfile()=tools.nt2csv.NTriple2CSV-class.html#convertfile"><a title="tools.nt2csv.NTriple2CSV.convertfile" class="py-name" href="#" onclick="return doclink('link-10', 'convertfile', 'link-10');">convertfile</a></tt><tt class="py-op">(</tt><tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">ifname</tt><tt class="py-op">,</tt> <tt class="py-name">f</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">tgraph</tt><tt class="py-op">)</tt> </tt>
<a name="L114"></a><tt class="py-lineno">114</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> <tt class="py-comment"># process a single .nt file</tt> </tt>
<a name="L115"></a><tt class="py-lineno">115</tt>  <tt class="py-line">                        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-11" class="py-name"><a title="tools.nt2csv.NTriple2CSV.convertfile" class="py-name" href="#" onclick="return doclink('link-11', 'convertfile', 'link-10');">convertfile</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">ifname</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">tgraph</tt><tt class="py-op">)</tt> </tt>
</div></div><a name="L116"></a><tt class="py-lineno">116</tt>  <tt class="py-line"> </tt>
<a name="main"></a><div id="main-def"><a name="L117"></a><tt class="py-lineno">117</tt> <a class="py-toggle" href="#" id="main-toggle" onclick="return toggle('main');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="tools.nt2csv-module.html#main">main</a><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="main-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="main-expanded"><a name="L118"></a><tt class="py-lineno">118</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-string">'-h'</tt><tt class="py-op">:</tt> </tt>
<a name="L119"></a><tt class="py-lineno">119</tt>  <tt class="py-line">                <tt class="py-keyword">print</tt> <tt class="py-string">' Takes either a single RDF file in NTriple format or a directory with NTriple files'</tt> </tt>
<a name="L120"></a><tt class="py-lineno">120</tt>  <tt class="py-line">                <tt class="py-keyword">print</tt> <tt class="py-string">' along with a target graph URI as input (if input is a directory then all the files will'</tt> </tt>
<a name="L121"></a><tt class="py-lineno">121</tt>  <tt class="py-line">                <tt class="py-keyword">print</tt> <tt class="py-string">' go into the same target graph) and creates BigQuery-compliant CSV file(s) with the same'</tt> </tt>
<a name="L122"></a><tt class="py-lineno">122</tt>  <tt class="py-line">                <tt class="py-keyword">print</tt> <tt class="py-string">' name as the input file(s) in the target graph.'</tt> </tt>
<a name="L123"></a><tt class="py-lineno">123</tt>  <tt class="py-line">                <tt class="py-keyword">print</tt> <tt class="py-string">' --------------------------------------------------------------------------------------------------'</tt> </tt>
<a name="L124"></a><tt class="py-lineno">124</tt>  <tt class="py-line">                <tt class="py-keyword">print</tt> <tt class="py-string">' EXAMPLE: $python tools/nt2csv.py test/mhausenblas-foaf.nt http://example.org/mhausenblas'</tt> </tt>
<a name="L125"></a><tt class="py-lineno">125</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L126"></a><tt class="py-lineno">126</tt>  <tt class="py-line">                <tt class="py-name">infile</tt> <tt class="py-op">=</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> </tt>
<a name="L127"></a><tt class="py-lineno">127</tt>  <tt class="py-line">                <tt class="py-name">targetgraph</tt> <tt class="py-op">=</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">]</tt> </tt>
<a name="L128"></a><tt class="py-lineno">128</tt>  <tt class="py-line">                <tt id="link-12" class="py-name" targets="Module tools.nt2csv=tools.nt2csv-module.html"><a title="tools.nt2csv" class="py-name" href="#" onclick="return doclink('link-12', 'nt2csv', 'link-12');">nt2csv</a></tt> <tt class="py-op">=</tt> <tt id="link-13" class="py-name" targets="Class tools.nt2csv.NTriple2CSV=tools.nt2csv.NTriple2CSV-class.html"><a title="tools.nt2csv.NTriple2CSV" class="py-name" href="#" onclick="return doclink('link-13', 'NTriple2CSV', 'link-13');">NTriple2CSV</a></tt><tt class="py-op">(</tt><tt class="py-name">infile</tt><tt class="py-op">,</tt> <tt class="py-name">targetgraph</tt><tt class="py-op">)</tt> </tt>
<a name="L129"></a><tt class="py-lineno">129</tt>  <tt class="py-line">                <tt id="link-14" class="py-name"><a title="tools.nt2csv" class="py-name" href="#" onclick="return doclink('link-14', 'nt2csv', 'link-12');">nt2csv</a></tt><tt class="py-op">.</tt><tt id="link-15" class="py-name" targets="Method tools.nt2csv.NTriple2CSV.convert()=tools.nt2csv.NTriple2CSV-class.html#convert"><a title="tools.nt2csv.NTriple2CSV.convert" class="py-name" href="#" onclick="return doclink('link-15', 'convert', 'link-15');">convert</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L130"></a><tt class="py-lineno">130</tt>  <tt class="py-line">                 </tt>
<a name="L131"></a><tt class="py-lineno">131</tt>  <tt class="py-line"><tt class="py-keyword">if</tt> <tt class="py-name">__name__</tt> <tt class="py-op">==</tt> <tt class="py-string">'__main__'</tt><tt class="py-op">:</tt> </tt>
<a name="L132"></a><tt class="py-lineno">132</tt>  <tt class="py-line">        <tt id="link-16" class="py-name" targets="Function tools.nt2csv.main()=tools.nt2csv-module.html#main"><a title="tools.nt2csv.main" class="py-name" href="#" onclick="return doclink('link-16', 'main', 'link-16');">main</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L133"></a><tt class="py-lineno">133</tt>  <tt class="py-line"> </tt><script type="text/javascript">
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